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node_modules/arr-flatten/index.js 418 Bytes
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aaac7fed   liuqimichale   add 
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  /*!
   * arr-flatten <https://github.com/jonschlinkert/arr-flatten>
   *
   * Copyright (c) 2014-2017, Jon Schlinkert.
   * Released under the MIT License.
   */
  
  'use strict';
  
  module.exports = function (arr) {
    return flat(arr, []);
  };
  
  function flat(arr, res) {
    var i = 0, cur;
    var len = arr.length;
    for (; i < len; i++) {
      cur = arr[i];
      Array.isArray(cur) ? flat(cur, res) : res.push(cur);
    }
    return res;
  }